Circuit-connector.



H. A. DOUGLAS.

CIRCUIT CONNECTOR.

APPLICATION FILED APR. 4.19M.

Patented Dec. 10, 1918.

2 SHEETSSHEET I H. A. DOUGLAS.

CIRCUITYCONNECTOR.

APPLICATION FILED APR.4. 1 917. 1,286,961., Patented De0.10, 1918.

2 SHEETS-SHEET 2.

barren seiner HARRY A: DOUGLAS, OF BRONSON, MICHIGAN.

CIRCUIT-CONNECTOR.

answer.

To all whom it may concern:

Be it known that I, HARRY DoUoLas,

citizen of the United States, residing at Bronson, in the county of Branch and State 5 of Michigan, have invented a certain new and useful Improvement in'Circuit-Connectors, of'whichthe following is a full, clear,

concise and eXact description. 1

My invention relates to circuit connectors.

1 and to the means for mounting them and is of particular service when employed in'as sembling' lamp casings with incandescent lamps in the manufacture of headlights. taillights, etc, and is also particularly of 5 service in assembling circuit couplerswith the lamp casings of headlights. In prac-- tising my invention the shell which is employed for holdingcontact carriers. such as the lamp bulb and the plug by which the lamp bulb is included in'circuit is provided with projections between which a portion'of the lamp casing, refiector, or other mount;

I ing is interposed. The portion ofthe mounting which immediately surrounds the shell preferably of conical or tapering forma-' tion. The shell preferably has an outsetting bead and a tongue between which the aforesaid portion of the mounting is interposed, the bead engaging the adjacent edge of said portion of the mounting, while the tongue engages the inner sloping face of said mounting portion that in turn slopes to ward the shell. By .this construction a rigid assembly of the connector shell and the lamp 3:; casingmay be efi'ected. In assembling the shell and its mounting the tongue is desirably projected after the bead is positioned in engagement with the shell mounting whereafter the tongue, which initially is flush I 40 with the shell, is pressed intofirm engagei ment with the mounting.

I will explain my invention more fully by reference ,to the accompanying drawings showing preferred embodiments thereof and '45 in which Figure 1 shows the adaptation-of the invention to a headlight. structure; Fig. 2 shows the adaptation of the invention to a taillight structure; Fig. 3 is a View in sectional elevation illustrating the invention;

- Fig. 4 is a view on line.4'-4 of Fig. 3; Fig. 5 is a sectional view illustrating the assembly of .the shell with its mounting, the con: tact carriers being omitted, this view-being taken on line 5 5 of Fig. 6; Fig. 6 is a view on line 66 of Fig. 5; Fig. 7 is a perspective View illustrating another form of I Specification of Letters Patent. Patented Dec, 10 1918.- Applicationfiled lipri14, 1917. Serial No. 159,728.

mounting; and Fig. 8 is a View, mainly in section, showing the assembly of the mounting withacontact carrying shell.

Like parts are indicated by similar charfigures.

' acters of reference throughout the diiferent The types of lamps shown in Figs. 1 and 2 are well known to those skilled in the art and need not be specifically described. In Fig. 1 theshell 1 is held in assembly with the reflector 1 in accordance with my invention. In Fig. 2 the shell 2 is held in connectionwith the casing 2 The connector shell 3' is held in connection with the casing 3 of the lamp shown in Fig.1. In both of these figures the elements 1 2 3 each constitute a mounting for a connector shell. AsFigs. 1 and 2 are on a small scale the invention will be further specifically described by reference to the remaining figures.

Referring first particularly to Figs. 3 and l which illu'strate'the assembly of the shell 1 with its mounting 1 the shell 1 carries a plug 6 at one end, this plug being adapted ,for the reception of the terminal 7, of a circuit conductor that is employed for including the lamp bulb 8 in circuit. Thecon nector shown in Fig. 3 is a single pole connector in which eventv the plug 6 carries one spring pressed contact 9. The lamp bulb 8 carries bayonet pins 10 that are receivable in bayonet slots 11. The base of this lamp- I bulb constitutes a contact carrier and'has a contact 12 which is engaged by the-spring pressed contact 9. head or projection 13 and tonguesv 14 which tongues are initially flush with the shell but are pushed outwardly into .the sloping position illustrated by means of tongues 14. In assembling the shell with its 1n0unting the end of the shell having the tongues ll is passed'through the opening in the mounting, the tongues then clearing the mounting as they are initially flush with the shell. After the bead 13 has beenpositioned' agalinstthe edge of the, marginal. portion 16 The shell includes a i I I 1;, of the'mounting' '1 the tongues 14 are engaged by a tool and are forced into the slop- Zing positions illustrated in which positions these tongues firmly press upon the inner sloping face of the marginal portion 16 of desired, may be rigidly-assembled therewith if the pressure applied the tongues 14; is

j 5, 6, 7f and8 which are similar to the parts the connector of Fig. 8 has two spring ,the contact-carrier6 carries bayonet pins 6 sufiicient. A

Figs. 5, -6', 7 and 8 illustrate the' assembly of the mounting. 3 and the shell 3 of Fig. 1 andthe formation of the mounting itself is somewhat modified. The parts of Figs.

shown in-Figs. 3;,and 4 are given similar characters of reference, it being stated that pressed contacts 9 and two contacts 12 upon the carriers for these contacts and that by which 'it may be assembled with the shell 3 that has suitable bayonet slots 6 In Figs.

and 4 the tapering or conical portion 16 is annular whereas in the construction of Figs. 5, 6, 7 and 8'the portion 16 is in sections that are separated by the unsloping portions 16 of the 'mounting 3 whereby shoulders 16 are formed between which'the tongues 14 are disposed. In the eventthat vthe tongues 14 do not engage the mounting 3 with sufficient jforceto-prevent the shell from rotating in its mounting the shoulders 6 will prevent such rotation.

c Having thus described my invention I claim as new and desire to secure by Letters Patent the following 1. circuit connector including a shell;

' and contact carriers carriedby the shell, said shell having a projection and a tongue integrally formed with and projecting from said shell; in combination with a mounting provided with an opening in which said shell is received, a portion of the mounting immediately adjacent the shell sloping toward the shell and being interposed between said projection and tongue; the projection engaging-the adjacent edge of said sloping portion ofthe -mounting while the tongue is angularly disposed'with respect to the inner sloping face of said mounting portion with the end of the tongue in abutting engagement with said sloping face.

shell having a projection and a tongue integrally formed with and projecting from 2. A circuit connector lncluding a shell; 1 and contact carriers carried by the shell, said 

